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11Alexandr11 [23.1K]
3 years ago
12

Jonah and his brother ran a race. Jonah reached the finish line in 68.49 seconds and his brother reached the finish line 4.66 se

conds later. How long did it take Jonah's brother to run the race?
Mathematics
2 answers:
bulgar [2K]3 years ago
6 0
73.15 is your answer
Semenov [28]3 years ago
6 0

Answer:

73.15 seconds or one min and 3.15 seconds

Step-by-step explanation:

x = amount of time it took Jonah to run the race

68.49 + 4.66 = x

x = 73.15 seconds

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Ann increased the quantities of all the ingredients in a recipe by 60\%60%60, percent. She used 808080 grams (\text{g})(g)left p
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Answer:

50 grams

Step-by-step explanation:

Let the amount of cheese required by the recipe be "x"

Ann increased 60% from original amount and then used up 80 grams. Thus:

<em>Original, increased by 60%, became 80</em>

<em />

This translated to algebraic equation would be:

x + 0.6x = 80

<u>Note:</u>  60% = 60/100 = 0.6

So we can solve the above equation for "x" and get our answer. Shown below:

x + 0.6x = 80\\1.6x=80\\x=\frac{80}{1.6}\\x=50

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NemiM [27]
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Dafna1 [17]
Diane has 380 coins (rounded to the nearest 10)
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3 years ago
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Answer:

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Step-by-step explanation:

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